Should we sign an older CB?

There is McAlister, Surtain, Bly and Sam Madison on the market. There're not long term solution but one of them could fill an important position. I'm not saying that we should replace Bartell with one of them because we need to sign him. Bartell and McAlister look better than Bartell and Hill. If McAlister gets 2 or 3 good year left it will give time to Wade, Hill or King to develop. I think the best option of the group is Bly because he didn't miss a lot of game.

But I also understand that their not young and there are not what they used to be. I think Devaney must look at every option, that might not be the solution but it might be a short term solution. So what do you think?